I strongly think that naruto should learn the sage mode too the last.and a complete new technique so that he can use many jutsu like his father.anyway dat is my opinion.wats yours.:shrug:
i know naruto to be around 16 years of age (due to his mothers speech to him when trying to tame the nine tails).secondly naruto,sasuke,shikamaru,etc should be around the same age bracket.so how old can hinata be.